904/6B No 3. National Theatre: Telephones from 1st April 1975

The file contains correspondence and enclosures, file notes and drawings and mainly relates to the installation of telephones at various places in the building, covering the acceptance of responsibility for the telephone instruments installed by the Post Office, the appropriate heating and ventilation, outstanding payments to contractors Pye Business Communications Ltd, P A B X telephone system installation, difficulties with locating telephones in the box office, training of operators, testing of Pye Business Communications Ltd's work by the Post Office, offices' direct exchange lines and their numbers, the installation of coin boxes, exchange lines for the Old Vic annex when it is transferred, the 'opening date' of the phone system, spur units, conduits, answering machines, the telephone apparatus room, faults and excessive traffic overloading the system and an extension of the switchboard. Correspondents include Theatre Projects Consultants Ltd, The South Bank Theatre Board, the Post Office (South Central Telephone Area), Pye Business Communications Ltd, the National Theatre, Denys Lasdun & Partners, Denys Lasdun Redhouse & Softley, Flint & Neill Ltd, the National Building Agency, the Electrical Clerk of the Works, and Davis Belfield and Everest. Items of note include schedule 904/SC14 'National Theatre: Telephones. Installation for Booking Services Offices and Ancillary Areas', two reduced-size photocopies of Denys Lasdun & Partners plans showing the telephone layout, including drawing number 552/01/3000 'National Theatre Upper Theatre & Offices Group Grids L-Q Plan at Level 5925' and drawing number 552/01/301[1] 'National Theatre Upper Theatre & Offices Grids E-L Plan at Level 59-25', numbered 3008-3011, schedule 904/SC14 'National Theatre: Telephones. Installation for Booking Services Office and Ancillary Areas', schedule '904/SC.17 National Theatre Telephone schedule', a guide for employees on how to use their telephones, a specification 'Cottesloe Theatre: Telephones' (2 duplicates removed), two drafts of a Cottesloe telephone schedule, a survey of switchboard problems by the Post Office in 1979 and 2 traffic data information sheets. Original card folder disposed of. '904/6B No 3. National Theatre: Telephones from 1st April 1975' was written on the spine.

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